4e42229bdd
git-subtree-dir: external/gainput git-subtree-split: 2be0a50089eafcc6fccb66142180082e48f27f4c
70 lines
2.8 KiB
C++
70 lines
2.8 KiB
C++
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#ifndef GAINPUTGESTURES_H_
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#define GAINPUTGESTURES_H_
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#ifdef GAINPUT_ENABLE_ALL_GESTURES
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#define GAINPUT_ENABLE_BUTTON_STICK_GESTURE
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#define GAINPUT_ENABLE_DOUBLE_CLICK_GESTURE
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#define GAINPUT_ENABLE_HOLD_GESTURE
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#define GAINPUT_ENABLE_PINCH_GESTURE
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#define GAINPUT_ENABLE_ROTATE_GESTURE
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#define GAINPUT_ENABLE_SIMULTANEOUSLY_DOWN_GESTURE
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#define GAINPUT_ENABLE_TAP_GESTURE
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#endif
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namespace gainput
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{
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/// Base class for all input gestures.
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/**
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* Input gestures are a way to process basic input data into more complex input data. For example,
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* multiple buttons may be interpreted over time to form a new button. A very simple gesture would the
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* ubiquitous double-click.
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*
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* Mainly for consistency and convenience reasons, all gestures should derive from this class though it's not
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* strictly necessary (deriving from InputDevice would suffice).
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*
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* Input gestures are basically just input devices that don't get their data from some hardware device
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* but from other input devices instead. Therefore gestures must also be created by calling
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* InputManager::CreateDevice() or InputManager::CreateAndGetDevice(). Most gestures require further
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* initialization which is done by calling one of their \c Initialize() member functions. After that,
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* they should be good to go and their buttons can be used like any other input device button, i.e.
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* they can be mapped to some user button.
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*
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* Gestures can be excluded from compilation if they are not required. In order to include all gestures
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* \c GAINPUT_ENABLE_ALL_GESTURES should be defined in \c gainput.h . This define must be present when
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* the library is built, otherwise the actual functionality won't be present. Similarly, there is one
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* define for each gesture. The names of these are documented in the descriptions of the
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* individual gesture classes. If no such define is defined, no gesture will be included.
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*/
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class GAINPUT_LIBEXPORT InputGesture : public InputDevice
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{
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public:
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/// Returns DT_GESTURE.
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DeviceType GetType() const { return DT_GESTURE; }
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const char* GetTypeName() const { return "gesture"; }
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bool IsLateUpdate() const { return true; }
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protected:
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/// Gesture base constructor.
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InputGesture(InputManager& manager, DeviceId device, unsigned index) : InputDevice(manager, device, index == InputDevice::AutoIndex ? manager.GetDeviceCountByType(DT_GESTURE) : 0) { }
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DeviceState InternalGetState() const { return DS_OK; }
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};
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}
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#include <gainput/gestures/GainputButtonStickGesture.h>
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#include <gainput/gestures/GainputDoubleClickGesture.h>
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#include <gainput/gestures/GainputHoldGesture.h>
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#include <gainput/gestures/GainputPinchGesture.h>
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#include <gainput/gestures/GainputRotateGesture.h>
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#include <gainput/gestures/GainputSimultaneouslyDownGesture.h>
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#include <gainput/gestures/GainputTapGesture.h>
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#endif
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